FN Archimer Export Format PT J TI Accumulation curves of environmental DNA sequences predict coastal fish diversity in the coral triangle BT AF Juhel, Jean-Baptiste Utama, Rizkie S. Marques, Virginie Vimono, Indra B. Sugeha, Hagi Yulia Pouyaud, Laurent Dejean, Tony Mouillot, David Hocdé, Régis AS 1:1;2:2;3:1;4:2;5:2;6:3;7:4;8:5;9:1,6;10:1; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:; C1 MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France Research Center for Oceanography, Indonesian Institute of Sciences, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara, Indonesia Politeknik Kelautan dan Perikanan Sorong, KKD BP Sumberdaya Genetik, Konservasi dan Domestikasi, Papua Barat 98411, Indonesia Institut des Sciences de l'Evolution de Montpellier, Montpellier, France SPYGEN, 73370 Le Bourget-du-Lac, France ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Australia C2 UNIV MONTPELLIER, FRANCE LIPI, INDONESIA POLITEKNIK KELAUTAN DAN PERIKANAN SORONG, INDONESIA ISEM, FRANCE SPYGEN, FRANCE UNIV JAMES COOK, AUSTRALIA UM MARBEC IN WOS Cotutelle UMR copubli-france copubli-int-hors-europe copubli-sud IF 5.349 TC 26 UR https://archimer.ifremer.fr/doc/00640/75232/79601.pdf LA English DT Article DE ;eDNA metabarcoding;sequence clustering;Operational Taxonomic Unit;diversity assessment;detectability AB Environmental DNA (eDNA) has the potential to provide more comprehensive biodiversity assessments, particularly for vertebrates in species-rich regions. However, this method requires the completeness of a reference database (i.e. a list of DNA sequences attached to each species), which is not currently achieved for many taxa and ecosystems. As an alternative, a range of operational taxonomic units (OTUs) can be extracted from eDNA metabarcoding. However, the extent to which the diversity of OTUs provided by a limited eDNA sampling effort can predict regional species diversity is unknown. Here, by modelling OTU accumulation curves of eDNA seawater samples across the Coral Triangle, we obtained an asymptote reaching 1531 fish OTUs, while 1611 fish species are recorded in the region. We also accurately predict (R² = 0.92) the distribution of species richness among fish families from OTU-based asymptotes. Thus, the multi-model framework of OTU accumulation curves extends the use of eDNA metabarcoding in ecology, biogeography and conservation. PY 2020 PD JUN SO Proceedings Of The Royal Society B-biological Sciences SN 0962-8452 PU The Royal Society VL 287 IS 1930 UT 000552605500001 DI 10.1098/rspb.2020.0248 ID 75232 ER EF